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  • 产品名称：磷化氢检知管7J Phosphine

  • 产品型号：7J
  • 产品厂商：日本GASTEC
  • 产品文档：
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简单介绍：
磷化氢检知管7J Phosphine，Measuring Range 2.5 to 25 ppm 25 to 500 ppm 500 to 1000ppm，检测种类：氨气、苯、一氧化碳、硫化氢、二氧化硫、氟化氢、二氧化碳、氯气、氯化氢、氮氧化物、碳氢化合物总量、丙酮、二甲苯、丁酮、甲苯、磷化氢、二氧化氮、三氯乙稀、氰化氢、氯乙稀、硫醇、二氧化氯、溴化甲、臭氧、丁烷、汽油、柴油、甲醛
详情介绍：

 

磷化氢检知管7J Phosphine
Phosphine              No.7J

PH3

磷化氢检知管7J Phosphine

Performance
 

MeasuringRange

2.5 to 25 ppm

25 to 500 ppm

500 to 1000ppm

PumpStrokes

2 to 10

1

1/2

CorrectionFactor

1/2 to 1/10

1

2

SamplingTime

1 minute per pumpstroke

DetectingLimit

1 ppm (n = 10)

ColorChange

White → Paleyellow

ReactionPrinciple

2PH3 + 6HgCl2 +3H2O → Hg3P2磷化氢检知管7J Phosphine3HgCl2磷化氢检知管7J Phosphine3H2O+6HCl

Coefficient ofVariation

10% (for 2.5 to 100ppm), 5% (for 100 to 500 ppm)

ShelfLife3Years
Correctionsfor
temperature & humidity		Unnecessary
Store the tubes at cool and darkplace.

Possible coexisting substances and theirinterferences(NOTE)


 

Substance

Concentration

Interference

Change color by itself

Arsine

1/3 time

Plus error

Produces brownstain

Hydrogenselenide

1/5 time

Plus error

Produces brownstain

Hydrogensulfide

1/5 time

Plus error

Produces dark brownstain


Othersubstance measurable with this detector tube


 
Calibration gasgenerationHigh pressure gascylinder method


 


TLV-TWATLV-STELExplosive range
0.3ppm1ppm-
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